Reenforced tennis net and method of making the same



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E Hmm CA umm N1 1 VSF I N N E T D E C R O F N E E R June 11, 1935.

Patented June 1l, 1935 2,004,579 nsnnrononn 'rnNNrs yinuit: annV METHoD or MAKING rus Vsalvia Valentine Lichtenstein, Jersey City, j., assigner to The Fish Net and Twine Co., .lersey`C1ty,

N. J., a corporation of NewI Jersey Application August 23, 1932, SerialjNo. 630,001

6 Claims.

My invention relatesto improvements in double center and heavy center tennis nets and 'to the method of making the same.

Double center tennis nets have been constructed which include three substantially rectangular sections, namely, a center section of double strand netting and two outside or end sections of single strand netting. This type of tennis net is assembled by lashing the ends of the side sections to the ends of the center section with the result that the nished product is a net having rows of unsightly knots and loose ends marking 4the seams between the center and side sections.

With the foregoing in mind it is the purpose of my invention to produce a tennis net which' will embody in its structure a double or heavy center portion and single side portions and which will not be marked by any knots or loose ends along the lines between the single and double or heavy portions.

It is a further purpose of my invention to provide a tennis net which consistsrof a single strand netting rat its outer ends and reenforcing double or heavy strand netting at its mid section, the latter being composed of a triangular shaped in- Vsert and side portions forming a symmetrical perfectly balanced double or heavy center built into the net structure.

I accomplish this purpose by utilizing a novel method of constructing a tennis net according to the present invention, the steps employed being described in the following specication, set forth in the appended claims and illustratively exempliiied in the accompanying drawing, in which, Figure 1 is a front elevational view of a tennis net as it appears on the court; Figure 2 is an elevational View of a length of the netting, as it comes from the knitting machine, embodying the reenforced double strand sections at the sides; Figure 3 is an elevational View of a net after it has been squared and separated from the original length; Figure 4 is an elevational view of the parts of the net as they would appear during the step of reversing certain of the parts and inserting a center section; Figure 5 is an elevational View of a length of squared netting Where the double strand section is disposed originally in the mid section; and Figure 6 is anelevational view of the same length Vafter severing it transversely thereof and reversing one half to form thenished net. Figure 7 is an elevational view of a portion of the wedge' or insert showing the loop ends along the sides; and Figure 8 is an elevational view of a section of the nished net show- (c'l. 27s- 29) l ing the seariifforlned by joining'the wedge and adjacent side of the V-shaped opening between the two sections ofthe net. v

According to the present' invention my improved method ofV constructing a tennis net, consists in knitting a length of so-called diamond shaped netting with a single strand longitudinal central portion and adouble or heavy strand narrower portion along each side. The netting is squared in the usual manner by separating the mesh diagonally across the full width of material, as illustrated in dot-and-dash` lines in Figure 2. The squared strip of netting then consists of substantially three parallelograms, namely, a relatively long single strand mid section and two double strand end sections. The strip is severed transversely thereof along a center line of the mid-section, as shown in dot-anddashlines in Figure 3. The next steps consistll'lrst in reversing one of the severedv portions so that `the double strand end section is disposed adjacent and alined with the double strand end section of the other'end, and second, in inverting oneof the severed portions to bring the diagonal ends of the two. double strand sections into position to form a V-shaped opening therebetween, as shown in Figure fl. A double or heavy strand triangular dart or wedge is then knitted and placed in the IV-shaped opening of the net.

At this point in the construction of the net a stepped line to engage the points of the loops-y and at each point tying ina knot without loose ends to fasten the loops in position as shown in Figure 8. Because the strand used to connect the pieces of netting together follows exactly the outline of the knitted strands, in the sections it is' very dilcult to see where thel lines of the connection have been made. The outline of the triangular dart is indicated in dot-and-dash lines in Figure 1.

It will be clear that in accordance with the several steps of the method outlined above'it is possible to produce a tennis net having a double strand or heavy center portion evenly divided on opposite sides of the vertical center line of the net proper and outside single strands sections running from opposite ends of the double strand section to the ends of the net.

Referring now toA the nished product, reference will be had to the drawing, in which I0 denotes the single strand end sections of the tennis net, each thereof terminating at its inner end in a parallelogram shaped double strand section li. The free sides I2 of sections Ill when placed adjacent to each other form' a V-shaped opening I3, the sides l2lof the opening comprising a series of loops |4,vas illustrated in Figure 8. l5 is constructed of double'or heavy strand netting having a row of loops lr6 with free sides disposed about its two sides. The number of loops i4 of the sides l2 correspond with the number of loops i6 of one side of the insert or dart l5 so that a strand or strands l1 of twine may be run along from side to side engaging the corners of the loops at each lower step. kA knot vI8 is tied at each meeting point witha loop to lattach the two double sections Il of the outside sections I to the insert or dart i5. In the usual manner the upper and lower sides of the net are attached to separate ropes i9 or lengths of binding material which extend beyond the ends of the net for the purpose of attaching it to the posts of the court.

The finished net, as it appears,` in Figure l, consists of a substantially inverted trapezoidal shaped double or heavy strand center section and single strand end sections. 1

In order to accomplish a somewhat similar result in the construction of reenforced tennis nets and kto avoid the more costly steps in the' manufacture of the preferred embodiment of my invention'outlined above, I have devised anet illustratively exemplified in Figures 5A and 6, in which the ordinary net, having adiagonally disposed mid section 2li of` double strand netting, is-merely severed along a transversecenter line 2i shown in dotted line in Figure 5, leaving two halves 22, one thereof .being inverted, and their raw edges attached so as to construct an inverted trapezoidal shaped double strand center section 23 and outer single strandxsections 24. The seam formed by attaching the raw edges together is concealed within` a tape covering 25, asillustrated in Figure 6. The net constructed according to this modified form of my invention has the same general appearance as that of the preferred form except that the transverse centerline of thenet is marked by they upright tape covering 25.

Having now described my invention and the method by means of which the invention is vconstructed, what, I claimand desire to secure by Letters Patent is: Y v y l. The herein described method of producing acentrally reenorcedtennis net, which consists in squaring a strip of diamond netting having a single strand mid portion and heavy strand side portions to procure a strip having alternate par-v allelogram shaped sectionsof single and double strand netting, severing the single strand portion along aV center line running transversely of the net,l arranging the severed pieces of the netting to bring the free sides ofthe double strand portions into position to iorrn1 a V-shaped opening therebetween, and thereafter lling out theopening with a heavy strand section to forrnafconl tinuous netting.

A triangular shaped insert or dart v 2. The herein described method of producing a centrally reenforced tennis net, which consists in squaring a strip'of diamond netting having a single strand mid" portion and double strand side portions to procure a strip of alternate parallelogram shaped sections of single and double strand netting, thereafter` severing the single strand portion along a center line running transversely of the net', bringing the free ends of the double strand portion adjacent each other and inverting one of the portions to cause a V-shaped space to be formed between the free ends, constructing a triangular shaped piece of double strand square netting and placing the same into the V-shaped space, and knitting twine into the adjacent sides of the sections-to attach the triangular pie'ce to' the adjacent free sides of the double strand sections.

3. A tennis net of the character described, comprising a length of squared netting having a trapezoidal shaped mid portion of heavy; strand netting, a part of the integralnside portions of single strand netting, said length of netting consisting of at least two separate pieces connected together, a part of each of said pieces being includedin the portion of heavy strand netting, and the said trapezoidal shaped mid-portion of heavy strand netting being disposed with its smaller parallel side at the lower edgeof the tennis net.

4. A tennis net of thecharacter described, comprising a length of squared netting having two parallelogram yshaped `heavy strand sections forming the sides of a V-shaped central opening, and a triangular shaped wedge of heavy strand netting disposed in said opening and integrally attached along its sides to the sides of the opening said length of squared netting consisting of two separate pieces connected togetherrand each thereof carrying a parallelogrammic shaped heavyistrand section.

5. A tennis net of the'character described, comprising a length of squared netting having two rhomboidal shaped double strand sections forming the sides of a V-shaped central opening and an integral extension of each section formed of single strand netting, to form the outer ends of the net, a triangular shaped wedge of double strand netting disposed in `said opening, 'said length of squared netting consisting of two pieces connected together and each thereof carrying one lof said rhomboidal shaped double strand sections, and strands ofjtwine integrally attaching the sides of the opening to the sides of the wedge. 6. A tennis net of the character described, comprising two sections of square netting, each thereof having a rhomboidal shaped' double or heavy strand end portionand a single strand portion extending therefrom', 'the adjacent ends` of the ,'doubleor heavystrand portions forming a v lshaped opening, the sidesof which comprise a series of loops each being free along one.side,`a triangular shaped double Vor heavy strand netting in saidopening having two ofv its sides formed with loops each being 'freealong-y one side and spaced one square fromthe, free side of a loop of the double or heavy strand portions, and a length of twine or twines running from side'to side' and `in a downward direction between the ladjacent points of the` spaced loops, the twine `being knot- 'ted to the lsaid points to form a continuousV net.. I.

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